Creating an Ethereum Wallet with Go-Ethereum
Step 1: We begin by importing all the important packages:
import (
“context”
“fmt”“log”
“github.com/ethereum/go-ethereum”
“github.com/ethereum/go-ethereum/accounts”
“github.com/ethereum/go-ethereum/common”
“github.com/ethereum/go-ethereum/crypto”
“github.com/ethereum/go-ethereum/ethclient”
)
Step 2: Generate a new Ethereum account by creating a new private key and deriving the corresponding public key and address. In this code, we generate a new private key using crypto.GenerateKey() function. If there’s an error, the program exits with a fatal error log message.
Go
privateKey, err := crypto.GenerateKey() if err != nil { log.Fatal(err) } publicKey := privateKey.Public() publicKeyECDSA, ok := publicKey.(*ecdsa.PublicKey) if !ok { log.Fatal("Error casting public key to ECDSA") } address := crypto.PubkeyToAddress(*publicKeyECDSA) |
Step 3: Print the newly created Ethereum address:
fmt.Println(“New Wallet Address:”, address.Hex())
Code:
Go
package main import ( "context" "crypto/ecdsa" "fmt" "log" "github.com/ethereum/go-ethereum" "github.com/ethereum/go-ethereum/accounts" "github.com/ethereum/go-ethereum/common" "github.com/ethereum/go-ethereum/crypto" "github.com/ethereum/go-ethereum/ethclient") func main() { // Generate a new private key privateKey, err := crypto.GenerateKey() if err != nil { log.Fatal(err) } // Obtain the public key from the generated private key publicKey := privateKey.Public() publicKeyECDSA, ok := publicKey.(*ecdsa.PublicKey) if !ok { log.Fatal("Error casting public key to ECDSA") } // Derive the Ethereum address from the public key address := crypto.PubkeyToAddress(*publicKeyECDSA) fmt.Println("New Wallet Address:", address.Hex()) // Other Ethereum-related operations can be performed here // Example: Connect to an Ethereum client (such as Infura) // Replace "<YOUR_INFURA_API_KEY>" with your actual Infura API key infuraAPIKey := "<YOUR_INFURA_API_KEY>" client, err := ethclient.Dial("https://mainnet.infura.io/v3/" + infuraAPIKey) if err != nil { log.Fatal(err) } // Other Ethereum operations using the client can be performed here } |
Output: Once you have entered your address and infura API in the above code your output might look like this:
Ethereum Development with Golang
Ethereum is a blockchain-based platform that enables developers to create decentralized applications (dApps) and smart contracts. Ethereum’s native cryptocurrency is Ether (ETH), which is used to pay transaction fees and incentivize miners to secure the network.
Go, also known as Golang, is a programming language developed by Google. It is a compiled language that is designed to be efficient, concise, and easy to use. Go is often used for building web applications, network servers, and other types of software that require high performance.